Ola Wikman

993 total citations
11 papers, 726 citations indexed

About

Ola Wikman is a scholar working on Pulmonary and Respiratory Medicine, Epidemiology and Hematology. According to data from OpenAlex, Ola Wikman has authored 11 papers receiving a total of 726 indexed citations (citations by other indexed papers that have themselves been cited), including 4 papers in Pulmonary and Respiratory Medicine, 4 papers in Epidemiology and 4 papers in Hematology. Recurrent topics in Ola Wikman's work include Iron Metabolism and Disorders (4 papers), Liver Disease Diagnosis and Treatment (3 papers) and Liver Diseases and Immunity (3 papers). Ola Wikman is often cited by papers focused on Iron Metabolism and Disorders (4 papers), Liver Disease Diagnosis and Treatment (3 papers) and Liver Diseases and Immunity (3 papers). Ola Wikman collaborates with scholars based in Sweden, Norway and Denmark. Ola Wikman's co-authors include Stefan Lindgren, Henrik Hjortswang, Ragnar Befrits, Kjell–Arne Ung, Anders Eriksson, Jens Frederik Dahlerup, Palle Bager, Bjørn Moum, Andreas Rydning and Hanne Prytz and has published in prestigious journals such as Gastroenterology, Journal of Hepatology and Alimentary Pharmacology & Therapeutics.

In The Last Decade

Ola Wikman

11 papers receiving 704 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Ola Wikman Sweden	9	317	300	235	223	198	11	726
J. Miller United States	18	139 0.4×	187 0.6×	731 3.1×	69 0.3×	39 0.2×	101	1.1k
Douglas Meyer United States	13	219 0.7×	72 0.2×	332 1.4×	60 0.3×	56 0.3×	27	724
Hor Ismail Poland	15	124 0.4×	340 1.1×	455 1.9×	98 0.4×	123 0.6×	51	742
Michel Papo Spain	7	290 0.9×	119 0.4×	175 0.7×	60 0.3×	30 0.2×	10	553
L.P. Bos Netherlands	14	226 0.7×	31 0.1×	170 0.7×	122 0.5×	32 0.2×	22	700
Antonio Linares Spain	8	521 1.6×	523 1.7×	172 0.7×	42 0.2×	28 0.1×	10	766
Makoto Tsujita Japan	17	113 0.4×	47 0.2×	172 0.7×	43 0.2×	133 0.7×	64	702
David J. Brandhagen United States	17	339 1.1×	266 0.9×	184 0.8×	330 1.5×	52 0.3×	31	866
A Tzakis United States	15	91 0.3×	300 1.0×	482 2.1×	60 0.3×	83 0.4×	40	680
Johnny Sayegh France	15	96 0.3×	47 0.2×	205 0.9×	40 0.2×	163 0.8×	34	661

Countries citing papers authored by Ola Wikman

Since Specialization

Citations

This map shows the geographic impact of Ola Wikman's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ola Wikman with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ola Wikman more than expected).

Fields of papers citing papers by Ola Wikman

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ola Wikman. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ola Wikman. The network helps show where Ola Wikman may publish in the future.

Co-authorship network of co-authors of Ola Wikman

This figure shows the co-authorship network connecting the top 25 collaborators of Ola Wikman. A scholar is included among the top collaborators of Ola Wikman based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ola Wikman. Ola Wikman is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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11 of 11 papers shown

Nyman, Margareta, Thao Duy Nguyen, Ola Wikman, Henrik Hjortswang, & Claes Hallert. (2020). Oat Bran Increased Fecal Butyrate and Prevented Gastrointestinal Symptoms in Patients With Quiescent Ulcerative Colitis—Randomized Controlled Trial. Crohn s & Colitis 360. 2(1). otaa005–otaa005. 15 indexed citations

Bager, Palle, Ragnar Befrits, Ola Wikman, et al.. (2013). High burden of iron deficiency and different types of anemia in inflammatory bowel disease outpatients in Scandinavia: A longitudinal 2-year follow-up study. Scandinavian Journal of Gastroenterology. 48(11). 1286–1293. 28 indexed citations

Befrits, Ragnar, Ola Wikman, Lars Blomquist, et al.. (2013). Anemia and iron deficiency in inflammatory bowel disease: an open, prospective, observational study on diagnosis, treatment with ferric carboxymaltose and quality of life. Scandinavian Journal of Gastroenterology. 48(9). 1027–1032. 29 indexed citations

Lindström, Linda S., Kirsten Muri Boberg, Ola Wikman, et al.. (2012). High dose ursodeoxycholic acid in primary sclerosing cholangitis does not prevent colorectal neoplasia. Alimentary Pharmacology & Therapeutics. 35(4). 451–457. 58 indexed citations

Bager, Palle, Ragnar Befrits, Ola Wikman, et al.. (2011). Fatigue in out‐patients with inflammatory bowel disease is common and multifactorial. Alimentary Pharmacology & Therapeutics. 35(1). 133–141. 83 indexed citations

Bager, Palle, Ragnar Befrits, Ola Wikman, et al.. (2010). The prevalence of anemia and iron deficiency in IBD outpatients in Scandinavia. Scandinavian Journal of Gastroenterology. 46(3). 304–309. 78 indexed citations

Lindgren, Stefan, Ola Wikman, Ragnar Befrits, et al.. (2009). Intravenous iron sucrose is superior to oral iron sulphate for correcting anaemia and restoring iron stores in IBD patients: A randomized, controlled, evaluator-blind, multicentre study. Scandinavian Journal of Gastroenterology. 44(7). 838–845. 143 indexed citations

Rubio-Terrés, Carlos, Charlotte Höög, Olle Broström, et al.. (2009). Assessing the size of polyp phantoms in tandem colonoscopies.. PubMed. 29(5). 1539–45. 19 indexed citations

Olsson, Rolf, Kirsten Muri Boberg, Stefan Lindgren, et al.. (2005). High-Dose Ursodeoxycholic Acid in Primary Sclerosing Cholangitis: A 5-Year Multicenter, Randomized, Controlled Study. Gastroenterology. 129(5). 1464–1472. 263 indexed citations

10.

Olsson, Rolf, K.M. Boberg, Ove B. Schaffalitzky de Muckadell, et al.. (2005). High-dose ursodeoxycholic acid in primary sclerosing cholangitis:. 1464–1472. 7 indexed citations

11.

Olsson, Rolf, K.M. Boberg, Stefan Lindgren, et al.. (2004). 551 Five-year treatment with high-dose UDCA in PSC. Journal of Hepatology. 40. 161–162. 3 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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